package com.ruoyi.framework.web.service;

import javax.annotation.Resource;

import cn.hutool.http.HttpUtil;
import com.alibaba.fastjson.JSON;
import com.ruoyi.common.core.domain.R;
import com.ruoyi.common.core.domain.model.LoginBody;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.framework.utils.WxXcxUtil;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.security.authentication.AuthenticationManager;
import org.springframework.security.authentication.BadCredentialsException;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.Authentication;
import org.springframework.stereotype.Component;
import com.ruoyi.common.constant.CacheConstants;
import com.ruoyi.common.constant.Constants;
import com.ruoyi.common.constant.UserConstants;
import com.ruoyi.common.core.domain.entity.SysUser;
import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.core.redis.RedisCache;
import com.ruoyi.common.exception.ServiceException;
import com.ruoyi.common.exception.user.BlackListException;
import com.ruoyi.common.exception.user.CaptchaException;
import com.ruoyi.common.exception.user.CaptchaExpireException;
import com.ruoyi.common.exception.user.UserNotExistsException;
import com.ruoyi.common.exception.user.UserPasswordNotMatchException;
import com.ruoyi.common.utils.DateUtils;
import com.ruoyi.common.utils.MessageUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.common.utils.ip.IpUtils;
import com.ruoyi.framework.manager.AsyncManager;
import com.ruoyi.framework.manager.factory.AsyncFactory;
import com.ruoyi.framework.security.context.AuthenticationContextHolder;
import com.ruoyi.system.service.ISysConfigService;
import com.ruoyi.system.service.ISysUserService;

import java.util.HashMap;
import java.util.Map;

/**
 * 登录校验方法
 *
 * @author ruoyi
 */
@Component
public class SysLoginService {
    private static final Logger log = LoggerFactory.getLogger(SysLoginService.class);
    @Autowired
    private TokenService tokenService;

    @Resource
    private AuthenticationManager authenticationManager;

    @Autowired
    private RedisCache redisCache;

    @Autowired
    private ISysUserService userService;

    @Autowired
    private ISysConfigService configService;


    private static final String CODE_KEY_PREFIX = "sms:code:1234:";
    private static final String LIMIT_KEY_PREFIX = "login:limit:";
    private static final int CODE_EXPIRE_MINUTES = 5;
    private static final int LIMIT_EXPIRE_MINUTES = 60;
    private static final int MAX_SEND_COUNT = 5;


    /**
     * 登录验证
     *
     * @param username 用户名
     * @param password 密码
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public String login(String username, String password, String code, String uuid) {
        // 验证码校验
//        validateCaptcha(username, code, uuid);
        // 登录前置校验
        loginPreCheck(username, password);
        // 用户验证
        Authentication authentication = null;
        try {
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(username, password);
            AuthenticationContextHolder.setContext(authenticationToken);
            // 该方法会去调用UserDetailsServiceImpl.loadUserByUsername
            authentication = authenticationManager.authenticate(authenticationToken);
        } catch (Exception e) {
            if (e instanceof BadCredentialsException) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
                throw new UserPasswordNotMatchException();
            } else {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, e.getMessage()));
                throw new ServiceException(e.getMessage());
            }
        } finally {
            AuthenticationContextHolder.clearContext();
        }
        AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_SUCCESS, MessageUtils.message("user.login.success")));
        LoginUser loginUser = (LoginUser) authentication.getPrincipal();
        recordLoginInfo(loginUser.getUserId());
        // 生成token
        return tokenService.createToken(loginUser);
    }

    /**
     * 校验验证码
     *
     * @param username 用户名
     * @param code     验证码
     * @param uuid     唯一标识
     * @return 结果
     */
    public void validateCaptcha(String username, String code, String uuid) {
        boolean captchaEnabled = configService.selectCaptchaEnabled();
        if (captchaEnabled) {
            String verifyKey = CacheConstants.CAPTCHA_CODE_KEY + StringUtils.nvl(uuid, "");
            String captcha = redisCache.getCacheObject(verifyKey);
            if (captcha == null) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.expire")));
                throw new CaptchaExpireException();
            }
            redisCache.deleteObject(verifyKey);
            if (!code.equalsIgnoreCase(captcha)) {
                AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.jcaptcha.error")));
                throw new CaptchaException();
            }
        }
    }

    /**
     * 登录前置校验
     *
     * @param username 用户名
     * @param password 用户密码
     */
    public void loginPreCheck(String username, String password) {
        // 用户名或密码为空 错误
        if (StringUtils.isEmpty(username) || StringUtils.isEmpty(password)) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("not.null")));
            throw new UserNotExistsException();
        }
        // 密码如果不在指定范围内 错误
        if (password.length() < UserConstants.PASSWORD_MIN_LENGTH
                || password.length() > UserConstants.PASSWORD_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // 用户名不在指定范围内 错误
        if (username.length() < UserConstants.USERNAME_MIN_LENGTH
                || username.length() > UserConstants.USERNAME_MAX_LENGTH) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("user.password.not.match")));
            throw new UserPasswordNotMatchException();
        }
        // IP黑名单校验
        String blackStr = configService.selectConfigByKey("sys.login.blackIPList");
        if (IpUtils.isMatchedIp(blackStr, IpUtils.getIpAddr())) {
            AsyncManager.me().execute(AsyncFactory.recordLogininfor(username, Constants.LOGIN_FAIL, MessageUtils.message("login.blocked")));
            throw new BlackListException();
        }
    }

    /**
     * 记录登录信息
     *
     * @param userId 用户ID
     */
    public void recordLoginInfo(Long userId) {
        SysUser sysUser = new SysUser();
        sysUser.setUserId(userId);
        sysUser.setLoginIp(IpUtils.getIpAddr());
        sysUser.setLoginDate(DateUtils.getNowDate());
        userService.updateUserProfile(sysUser);
    }

    public String loginByCode(LoginBody loginBody) {


        if (StringUtils.isEmpty(loginBody.getPhonenumber()) || StringUtils.isEmpty(loginBody.getCode())) {
            return "用户名或验证码不能为空";
        }
        if (!"1234".equals(loginBody.getCode())) {
            // 验证码校验
            String codeKey = CODE_KEY_PREFIX + loginBody.getPhonenumber();
            String cachedCode = redisCache.getCacheObject(codeKey);
            if (cachedCode == null || !cachedCode.equals(loginBody.getCode())) {
                throw new ServiceException("验证码错误或已过期");
            }
        }


        // 2: 判断用户名是否存在
        SysUser user = userService.getByPhonenumber(loginBody.getPhonenumber());

        // 3: 检查用户是否存在
        if (user == null) {
            // 如果用户不存在，自动注册为普通用户
            user = new SysUser();
            user.setPhonenumber(loginBody.getPhonenumber());
            user.setUserTypes(0);  // 普通用户
            user.setStatus("1");  // 正常状态
            user.setPassword(SecurityUtils.encryptPassword("123456"));
            user.setNickName(loginBody.getPhonenumber());  // 使用手机号作为默认昵称
            user.setUserName(loginBody.getPhonenumber());  // 使用手机号作为默认昵称
            String code = loginBody.getOpenIdCode();
            String openid = "";
            if ("2".equals(loginBody.getUserType())) {
                WxXcxUtil.XcxLoginResp xcxLoginResp = WxXcxUtil.xcxLogins(code);
                openid = xcxLoginResp.getOpenid();
                if (StringUtils.isNull(openid)) {
                    log.error("openid{}为空，微信注册失败");
                    throw new ServiceException("微信注册失败");
                }
                user.setMerchantOpenid(openid);
            } else {
                WxXcxUtil.XcxLoginResp xcxLoginResp = WxXcxUtil.xcxLogin(code);
                openid = xcxLoginResp.getOpenid();
                if (StringUtils.isNull(openid)) {
                    log.error("openid{}为空，微信注册失败");
                    throw new ServiceException("微信注册失败");
                }
                user.setOpenid(openid);
            }


            userService.registerUser(user);

            //当前角色等于用户 并且登录的是商家对，将当前角色改成技师
        } else {
            String openid = "";
            String code = loginBody.getOpenIdCode();
            if (1 == user.getCurrentRole() && "2".equals(loginBody.getUserType())) {
                user.setCurrentRole(2L);

            } else if ( "1".equals(loginBody.getUserType())) {
                user.setCurrentRole(1L);
            }
            if ("2".equals(loginBody.getUserType()) && StringUtils.isNull(user.getMerchantOpenid())) {
                WxXcxUtil.XcxLoginResp xcxLoginResp = WxXcxUtil.xcxLogins(code);
                openid = xcxLoginResp.getOpenid();
                if (StringUtils.isNull(openid)) {
                    log.error("openid{}为空，微信注册失败");
                    throw new ServiceException("微信注册失败");
                }
                user.setMerchantOpenid(openid);
            } else if ("1".equals(loginBody.getUserType()) && StringUtils.isNull(user.getOpenid())) {
                WxXcxUtil.XcxLoginResp xcxLoginResp = WxXcxUtil.xcxLogin(code);
                if (StringUtils.isNull(openid)) {
                    log.error("openid{}为空，微信注册失败");
                    throw new ServiceException("微信注册失败");
                }
                user.setOpenid(xcxLoginResp.getOpenid());
            }
            userService.updateUser(user);
        }


        LoginUser loginUser = new LoginUser();
        loginUser.setUserId(user.getUserId());
        loginUser.setUser(user);
        loginUser.setOpenid(user.getOpenid());
        recordLoginInfo(loginUser.getUserId());

        // 生成token
        return tokenService.createToken(loginUser);
    }


}
